Lead poisoning mutes swans' brassy notes
The Wildlife Rehabilitation Center of Minnesota receives a lot of waterfowl that have missed the migration period during the late fall months.
Phil Jenni, the center's executive director, says many trumpeter swans come in with lead poisoning from ingesting particles in the region's lakes and rivers.
Listen to the audio to hear what lead poisoning does to these swans' voices.
Create a More Connected Minnesota
MPR News is your trusted resource for the news you need. With your support, MPR News brings accessible, courageous journalism and authentic conversation to everyone - free of paywalls and barriers. Your gift makes a difference.